Finding the Fourth Proportional to 2,910,340,904.70, 4,365,548,681.85 and 971,644,136.70
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Solution
The fourth proportional to 2,910,340,904.70, 4,365,548,681.85 and 971,644,136.70 is: 1,457,478,666.28
Step by Step Solution
- Step 1: Write the proportion equation
2,910,340,904.70 : 4,365,548,681.85 = 971,644,136.70 : x - Step 2: Convert to fraction form
2,910,340,904.70/4,365,548,681.85 = 971,644,136.70/x - Step 3: Cross multiply
2,910,340,904.70x = 4,365,548,681.85 × 971,644,136.70 - Step 4: Simplify right side
2,910,340,904.70x = 4,241,759,780,197,966,848 - Step 5: Solve for x
x = 4,241,759,780,197,966,848/2,910,340,904.70 - Step 6: Final answer
x = 1,457,478,666.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.